1. Aon

1. Aon
Fee and commission income (2001): £644.8m
Pre-tax profit (2001): Not supplied

Address: 8 Devonshire Square
London
EC2M 4PL
Tel: 020 7623 5500
Fax: 020 7621 1511

Website: www.aon.co.uk

History: With its stock traded on the Frankfurt and New York stock exchanges, Aon has grown steadily since it was founded in 1982, with worlwide revenue for 2001 in excess of $7.6bn. Aon now has more than 50,000 employees, with offices in more than 120 countries.

In the UK, Aon consists of a network of companies and business units structured under the single banner of Aon Limited, each concentrating on specific industries, practice groups, products and services - providing clients with efficient, customised solutions tailored to their specific needs.

Chief officer: Dennis Mahoney, chairman and chief executive officer

Biography: Mahoney is chairman and chief executive officer of Aon Limited and has responsibility for all of Aon's operations in the UK.

Previously he was chairman and chief executive officer for Aon Group Limited and chairman of Aon UK Holdings. On 1 January 2000, he was also appointed a member of the Aon Group executive committee and deputy chairman of the Aon International executive committee.

Mahoney began his insurance career in 1969 when he joined the North American division of Price Forbes & Co. He was appointed to the board of Sedgwick in 1982 and two years later joined Alexander Howden Group as chairman.

Major shareholders: Aon Corporation

Main lines of business: Insurance and reinsurance broking, risk management consulting, personal lines insurance, actuarial services, outsourced services, employee benefits and human resources consulting.

Special schemes: Too numerous to mention

Number of UK branches: 90

Number of employees (average for 2001): 8,360

Technology: Aonline continues to develop electronic risk management services for clients, helping hundreds of organisations and thousands of users to bring new value, efficiencies and collaboration to managing risk. Aonline opens up new and holistic ways of gathering, sharing, modelling and analysing data - giving clients power to monitor and manage risk in partnership with Aon.